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Why Plywood Does Not Work For Boxes


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Nothing wrong with ply at all. Just because somebody didn't use enough of it. If that was 18mm MDF it'd still flex and would this topic still exist?

 

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thats pressed wood....plywood comes in multiple i thought like 5 ply aka 5 sheets making a single thickness of board

thats OSB...

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I am going to try bracing it before I make another one.

I know it has bracing on each corner, but thats about it.

I m thinking about getting some rods in there holding the top from flexing like that.

The meter I used when I first put in the subs when they were stiff as hell was an older one I learned.

But it hit 149.4 with pretty much all the doors open and over 152 with them closed with just the front windows open.

If that meter is old (look at the SS of it) then the reading might be false.

if you have any advice on how to brace it so I wont have to make another one please let me know

(here are some pics form the build log)

thanks

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so youre trying to say mdf boxes are pure shit?

no im saying that even mdf will flex like the one in the video without proper bracing...

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i understood him just fine.

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Ahh yes, the good old Audiocontrol meter, AKA the AC190 ;) Depending on its calibration it can be 10dB out :D

 

36CFDEF1-F93D-4FA3-9934-64EE2EC94080-2856-0000071FCFA47672.png.ebe82e417eabc5f239a4adf293b099f9.png

Previous 150+ daily rides:

Volvo 240 wagon 2 x DD Audio 9915s walled, Isuzu Trooper 6 x DD Audio 3515s walled clamshell, Lexus LX470  2 x Kicked Solo X 18s, Lexus LS400 4  x American Bass HD18 walled

SMD - System of The Month August 2008

My Youtube Videos

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